Java no longer works on Firefox.

I had Java 6 update 31. i had Chrome, and it worked fine. Afterwards, there was a update to Java 7 update 9. Due to an error i couldn't install Java 7, therefore i stuck with the Java 6 update 31. However, it didn't work. I enabled the extension, and restarted the browser, yet it still didn't work. I tried uninstalling Java 6 and installing Java 7, but it still doesn't work. I can't even get Java 6 now. I don't even have anymore Java's on my computer. But i need them. Any help? I'll really appreciate it.

I had Java 6 update 31. i had Chrome, and it worked fine. Afterwards, there was a update to Java 7 update 9. Due to an error i couldn't install Java 7, therefore i stuck with the Java 6 update 31. However, it didn't work. I enabled the extension, and restarted the browser, yet it still didn't work. I tried uninstalling Java 6 and installing Java 7, but it still doesn't work. I can't even get Java 6 now. I don't even have anymore Java's on my computer. But i need them. Any help? I'll really appreciate it.

Chosen solution

Did you try to download the full Java 6 U37 and saved the file to your desktop?

You may need to run the Java installer as Administrator (right-click: Run as > Administrator)

Did you try to download the full Java 6 U37 and saved the file to your desktop?
You may need to run the Java installer as Administrator (right-click: Run as > Administrator)
*http://www.java.com/en/download/manual_v6.jsp
*http://java.com/en/download/manual.jsp

The problem is that Java is not detected by Firefox. So the solution was to copy the Java "np<*>.dll" plugin files from the Java application directory "bin" folder (e.g., from C:\Program Files\Java\j2re<version>\bin\) to my Mozilla browser's installation directory plugins folder (e.g., to C:\Program Files\Mozilla Firefox\plugins). In fact the plugins folder do not exist. So I just created it and pasted 3 Java plugins files I've found, restarted Firefox and... It worked!

I've updated to java7u9 and firefox 17 did not install the java plugin. It asked over and to install the java plugin. I've solved the problem doing the advanced workaround found here http://kb.mozillazine.org/Java#If_Java_is_installed_and_enabled_but_does_not_work
The problem is that Java is not detected by Firefox. So the solution was to copy the Java "np<*>.dll" plugin files from the Java application directory "bin" folder (e.g., from C:\Program Files\Java\j2re<version>\bin\) to my Mozilla browser's installation directory plugins folder (e.g., to C:\Program Files\Mozilla Firefox\plugins). In fact the plugins folder do not exist. So I just created it and pasted 3 Java plugins files I've found, restarted Firefox and... It worked!